321431110230340 has 96 divisors (see below), whose sum is σ = 753506344128384. Its totient is φ = 114163985295360.

The previous prime is 321431110230299. The next prime is 321431110230341. The reversal of 321431110230340 is 43032011134123.

It is a junction number, because it is equal to n+sod(n) for n = 321431110230299 and 321431110230308.

It is not an unprimeable number, because it can be changed into a prime (321431110230341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684073162 + ... + 684542878.

It is an arithmetic number, because the mean of its divisors is an integer number (7849024418004).

Almost surely, 2^{321431110230340} is an apocalyptic number.

It is an amenable number.

321431110230340 is an abundant number, since it is smaller than the sum of its proper divisors (432075233898044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321431110230340 is a wasteful number, since it uses less digits than its factorization.

321431110230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542117 (or 542115 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 321431110230340 its reverse (43032011134123), we get a palindrome (364463121364463).

The spelling of 321431110230340 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, one hundred ten million, two hundred thirty thousand, three hundred forty".